Break the rules relating to baits (5)
I believe the answer is:
lures
'baits' is the definition.
('lure' can be a synonym of 'bait')
'break the rules relating' is the wordplay.
'rules' anagrams to 'LURES'.
Though, I am unsure how the anagram is indicated.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for lures that I've seen before include "Baits or attractions" , "Rules with decoys" , "Draws" , "Tempts or entices" , "Baits, decoys" .)